Tongue attachment.



PatBnte d Nov. 25, I902. R. O. THOMPSON. TONGUE ATTACHMENT. (ApplicationfiTed Nov. 16, 1901,)

(No Model.)

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RALPH OARMAN THOMPSON, OF NEWBERRY, INDIANA.

TONGUEATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 714,261, dated November25, 1902. Application filed November 16, 1901. Serial No. 82,594. (NomodelJ lowing is a specification.

My invention relates to certain improvements 1n cultivators, harrows,and similar agricultural implements, and has for its object to providean improved tongue attachment to facilitate the guiding of the machinealong the row, the tongue being pivoted and connected through abell-crank lever and link to a centrally-pivoted foot-lever arrangeddirectly in front of and below the drivers seat and serving as afoot-rest for i the driver and also as a means for effecting theshifting of the tongue in either direction.

In the accompanying drawings, Figure 1 is a plan view of atongue-attaching device arranged in accordance with my invention and 1illustrating sufficient of the frame of a cultibe locked rigidly to theframe when desired vator,'harrow, or other agricultural implement toillustrate my invention. Fig. 2 is a perspective view of a portion ofthe device. Fig. 3 is a transverse sectional elevation on the line 3 3,Fig. 2, illustrating the means employed for locking the tongue instationary position when desired; and Fig. 4c is a plan viewillustrating a modification of the structure.

Similar numerals of reference indicate correponding parts throughout thevarious figures of the drawings.

5 designates a frame of any suitable size, character, and proportionsfor the support of the teeth or blade or other operating devices of .acultivator, harrow, planter, fertilizerdistributer, or otheragricultural implement. To the forward portion of this frame isfulcrumed at 6 a draft-tongue 7, having a rear- Wardly-extendingtailpiece 8, provided at or near its rear end with a spring locking-bolt9, which may engage in a recess 10, formed in a transverse bar 5, sothat the tongue may The tongue normally is unlocked and is free to moveduring the operation of the machine and near its rear end is connectedby a 'which is being operated upon.

link 11 to one arm of a bell crank lever 12, fulcrumed on a stud 13,carried by the frame.

At the rear portion of the frame, immediately in front of the driversseat 14, is fulcrumed a foot-lever 15 in convenient position forengagement by the feet of the driver and which may form both a foot-restand a means for shifting the draft-tongue. To one side of this bar isconnected a link 16, extending to the onterand longer arm of thebell-crank lever 12 and so arranged as to transmit to such bell-cranklever any movement of the foot-lever.

The draft-aniinalsare harnessed in the usual or ordinary manner to thedraft-pole and through the connection of the pole with the frame drawthe apparatus after them. Owing to inequalities in the ground or thesurging ahead of one of the animals, the machine may be moved out ofline and away from the row To correct this movement and to keep theapparatus in a straight line, it is simply necessary for the drivertopress upon one or other side of the foot-lever and cause acorresponding movement of the draft-tongue to direct it in the properline.

The structure may be modified, as illustrated in Fig. 4, by pivoting thetongue at 6 at its rear end and connecting the bell-crank lever to thetongue in advance of the pivotpoint, the operation of the partsremaining the same. When it isnot desired to employ thistongue-adjusting device, the tongue may be rigidly locked to the frameby the springbolt 9, as before described.

It will be understood that the structure herein described may bemodified in a Variety of ways to render it suitable for connection withmachines of different shape, character, and function and that the sizes,proportions, and arrangement of parts may be altered to suit varyingconditions of use without sacrificing any of the advantages or departingfrom the intent and spirit of the invention.

Having thus described my invention, What I claim is- The combination ofthe frame, a tongue pivotally connected thereto and having at its rearend a spring-pressed locking-pin for engaging a socket in the frame, abell-crank In testimony that I claim the foregoing as lever pivoted tosaid frame, a foot-rest and my own I have hereto affixed my signature inIO operating-lever pivoted to the frame and disthe presence of twoWitnesses.

posed in the same horizontal plane with the bell-crank lever and thetongue, and links RALPH CARMAN THOMPSON connecting the bell-crankleverto the tongue Witnesses:

and to the operating-lever, substantially as CHAS. H. MARKEL,

specified. H. MINKERT.

